3		1
	2
				3
	4
				5
5		1

Difficulty: Very easy (0)

		2		3	5
					2
3
					1
1
4	6		2

Difficulty: Very hard (0)

			6		1
					5
4		1	2
		3	1		2
6
3		6

Difficulty: Super easy (0)

			2	4
				1
	6
				6
	4
	3	4

Difficulty: Very easy (0)